Lab grade · Polar H10 · Kubios-ready

Every heartbeat, logged honestly.

iPhone + Polar H10 = a lab-grade RR-interval logger. 30-hour offline recording on the chest strap. Multi-device batch workflows. Kubios-ready exports — atomic writes, integrity hashes, zero silent data loss.

30 h

Offline recording

10+

H10 devices

1024 Hz

H10 RR sample

0 KB

Cloud upload

What it does

A research-instrument without the lab budget.

⏱

30-hour offline recording

Trigger on the H10. Disconnect the iPhone. Walk away. Sync later via PSFTP.

⌗

Multi-device batch

5–10+ H10s in a roster. Batch-trigger, batch-sync, stop-all from one iPhone.

↻

Live RR-stream

Real-time tachogram + Poincaré, RR-stale watchdog, force-reconnect on signal drop.

🛡

Hard-stop guardrails

Battery, disk, thermal — automatic refuse-to-start when conditions risk data loss.

📄

Atomic exports

Write-to-temp-then-rename. SHA-256 integrity hash. Never half-written files.

☁

iCloud backup option

Opt-in iCloud Drive backup. Recordings outlive the iPhone.

Export formats

Drops cleanly into your analysis pipeline.

.txt

Kubios HRV

One RR-interval per line in milliseconds. Direct drop-in for Kubios HRV Premium and the open-source variant.

Forensic-ready

.json

open_hrv_json_v2

Full RR-array + recording metadata + provenance + SHA-256. Renders directly in our browser viewer.

Web-viewer compatible

.csv

Beat-list CSV

Per-beat row with index, timestamp, RR-ms and beat-class (N / AV-Block / Long / Short / Ectopic). For R / Python pipelines.

Python / R friendly

Built for

Anyone who needs clean RR data.

HRV researchers

Field studies

Replace lab-bound recording rigs with iPhone-based mobile setup. Same RR-source (Polar H10), defensible exports.

Sleep labs

Overnight HRV tracking

One 8-hour H10 recording sits comfortably in the 30-hour budget. Sync in the morning over PSFTP.

Biohackers

Personal baseline

Track RMSSD, DFA-α₁ and recovery markers across protocols. Export clean to your own dashboard.

Citizen scientists

Open data contribution

Contribute to community datasets in open_hrv_json_v2 format. Reproducible, schema-validated.

Positioning: RR Logger Pro is a research and wellness tool. It is not a medical device under MDR or FDA. RR-intervals from the Polar H10 chest strap are processed for research and personal analysis purposes only.

Coming to the App Store shortly.

Until then: drop us a note if you want early access or want to be notified at launch. The CARLON Equine browser viewer accepts RR Logger Pro JSON exports today.

Request early access → Open browser viewer